阅读说明：本技术 电缆牵拉托架及其安装方法 (Cable pulling bracket and installation method thereof ) 是由 柴宝亮 董立军 郭卫兵 郭辉 潘洪海 吴永兴 于 2019-08-30 设计创作，主要内容包括：本发明涉及海底电缆铺设领域,具体而言,涉及一种电缆牵拉托架及其安装方法。该电缆牵拉托架包括支撑固定结构和多个导辊；支撑固定结构包括支架部和多个管桩；每个管桩的下部用于固定土壤界面内；支架部与多个管桩可拆卸地固定连接；多个导辊安装在支架部上,以使多个导辊之间围成一个槽状结构。在沿海滩涂等环境中,电缆牵拉托架通过管桩的下部固定到土壤界面内,可以在沿海滩涂等环境中实现良好的固定,从而保证电缆牵拉托架的稳定性。另外本发明中支撑固定结构的支架部和管桩之间可拆卸连接,多个导辊与支架部也是可拆卸连接；这样可以将电缆牵拉托架拆卸为多个部件分别进行搬运,减小每次需搬运的物体的重量,从而便于进行人力搬运。(The invention relates to the field of submarine cable laying, in particular to a cable traction bracket and an installation method thereof. The cable pulling bracket comprises a supporting and fixing structure and a plurality of guide rollers; the supporting and fixing structure comprises a bracket part and a plurality of tubular piles; the lower part of each pipe pile is used for fixing a soil interface; the support part is detachably and fixedly connected with the plurality of tubular piles; the guide rollers are arranged on the bracket part so that a groove-shaped structure is formed between the guide rollers. In the environment such as coastal mud flat, the cable traction bracket is fixed to the soil interface through the lower part of the tubular pile, so that good fixation can be realized in the environment such as coastal mud flat, and the stability of the cable traction bracket is ensured. In addition, the support part of the supporting and fixing structure is detachably connected with the tubular pile, and the guide rollers are also detachably connected with the support part; therefore, the cable drawing bracket can be disassembled into a plurality of parts to be respectively carried, the weight of an object to be carried at each time is reduced, and manual carrying is facilitated.)

1. A cable pulling tray, wherein the cable pulling tray comprises a support fixture and a plurality of guide rollers;

the supporting and fixing structure comprises a bracket part and a plurality of tubular piles; the lower part of each pipe pile is used for being fixed in a soil interface; the support part is detachably and fixedly connected with the tubular piles;

The guide rollers are arranged on the bracket part, and a groove-shaped structure is enclosed among the guide rollers.

2. The cable pulling bracket according to claim 1, wherein the bracket portion is provided with a plurality of protruding columns, the number of the protruding columns is the same as that of the tubular piles, and the positions of the plurality of protruding columns correspond to the tubular piles respectively, and each protruding column is used for being inserted into the tube hole of the tubular pile corresponding to the protruding column.

3. The cable pulling carriage according to claim 1, wherein the number of the guide rollers is two; when the two guide rollers are fixed on the bracket part, the two guide rollers are obliquely arranged; and the distance between the two guide rollers is gradually reduced along the up-down direction to form a V-shaped groove structure, and the opening of the groove structure is upward.

4. The cable pulling carriage according to claim 1, wherein the number of guide rollers is three; when the three guide rollers are fixed on the bracket part, two guide rollers are arranged in a non-horizontal mode to form side walls of a groove-shaped structure, and the third guide roller is arranged between the bottom ends of the two guide rollers to form a bottom wall of the groove-shaped structure; the opening of the trough-like structure is upward.

5. the cable pulling bracket according to claim 3, wherein the bracket portion comprises a plurality of bracket units, each bracket unit is used for mounting at least one guide roller, and each bracket unit is fixedly connected with at least one tubular pile;

and the plurality of bracket single bodies are detachably and fixedly connected.

6. the cable pulling tray of claim 5, wherein the cradle portion comprises two cradle cells.

7. the cable pulling tray according to claim 5 or 6, wherein the bracket unit comprises a cross member and a post vertically provided on the cross member;

the top of stand is provided with first installation department, the crossbeam is kept away from the one end of stand bottom is equipped with the second installation department, be equipped with first draw-in groove on the first installation department, be equipped with the second draw-in groove on the second installation department, first draw-in groove with the second draw-in groove is used for connecting with two axle heads of deflector roll.

8. The cable pulling tray according to claim 4, wherein the bracket portion includes a cross member, two posts provided perpendicularly to the cross member, and a reinforcing member connected between the cross member and the posts; an upper clamping plate and a lower clamping plate are arranged at the upper end and the lower end of the upright post, two transverse clamping plates are arranged on the cross beam at intervals, a first clamping groove is formed in each transverse clamping plate, and the two first clamping grooves arranged at intervals can be matched with two shaft ends of the horizontally placed guide roller; the upper clamping plate is provided with a second clamping groove, the lower clamping plate is provided with a long round hole, and two shaft ends of the guide roller which is arranged in a non-horizontal mode can be installed in the second clamping groove and the long round hole.

9. a method of installing a cable pulling tray, the cable pulling tray being as claimed in any one of claims 1 to 8, comprising:

A step of placing the pile-insertion guide frame at a predetermined position;

Respectively and sequentially hoisting two tubular piles by the land and water excavator, putting the tubular piles into the guide holes of the two pile inserting guide frames, and pressing or driving the tubular piles into a soil interface to reach a preset depth;

measuring the distance between the two pile tops of the pipe pile, and adjusting the distance between the two pile tops of the pipe pile to a preset distance through an amphibious excavator;

when the cable pulling tray is the cable pulling tray of claim 7, further comprising:

connecting the two bracket monomers through bolts, and inserting the convex columns on the bracket monomers into the pipe holes pressed into the pipe piles with the designed depth;

Respectively installing two guide rollers between a first installation part and a second installation part which are arranged on the upright post and the cross beam on each bracket monomer;

When the cable pulling tray is the cable pulling tray of claim 8, further comprising:

Inserting the convex column on the bracket part into the pipe hole pressed into the pipe pile with the designed depth;

The guide roller that will not the level setting is installed between the last cardboard that both ends set up about the stand and lower cardboard, and the guide roller that the level set up is installed on the crossbeam between two horizontal cardboards that the interval set up to with the step that non-level guide roller and horizontal guide roller are fixed.

10. the method of installing a cable pulling tray according to claim 9, wherein in the step of sequentially lifting two tubular piles by the surface excavator, putting the tubular piles into the guides of the pile insertion guide frame, and pressing or driving the tubular piles into the soil interface to a predetermined depth, the tubular piles are fixed by pressing the tubular piles into the soil interface using the excavator bucket of the surface excavator.

Technical Field

the invention relates to the field of submarine cable laying, in particular to a cable traction bracket and an installation method thereof.

Background

The submarine cable is laid at the landing section, and usually a mode of firstly pulling and then burying is adopted. It basically comprises the following steps:

1. the beach is put in place, namely, the cable laying ship uses the high tide time period of the big flood to beach and land so as to shorten the distance of the landing section of the cable as much as possible; the cable laying ship is in place through the anchoring system and serves as a starting point for landing and pulling of the cable;

2. Landing and pulling, namely pulling the cable released from the cable laying ship to the land terminal along the cable design route by using pulling equipment of the land terminal and the transfer platform;

3. And (4) burying the cable, namely digging a trench at the designed route of the cable, hanging the cable into the trench, and then burying.

among the above steps, the landing and pulling step is a difficult point and key for laying the landing section of the submarine cable. One of the problems faced in this step is the need to overcome the on-way resistance due to the cable's own weight during the pulling process.

Disclosure of Invention

the present invention provides a cable pulling bracket, which solves the technical problems of the prior art that the cable is greatly affected by tide during the pulling process, and the daily operation time is short.

the invention provides a cable traction bracket, which comprises a supporting and fixing structure and a plurality of guide rollers;

the supporting and fixing structure comprises a bracket part and a plurality of tubular piles; the lower part of each pipe pile is used for fixing a soil interface; the support part is detachably and fixedly connected with the tubular piles;

The guide rollers are arranged on the bracket part, and a groove-shaped structure is enclosed among the guide rollers.

further, be provided with a plurality of projections on the support portion, the quantity of projection is the same with the quantity of tubular pile, and is a plurality of the position of projection corresponds with a plurality of tubular piles respectively, and every projection is arranged in pegging graft the tube hole rather than the tubular pile that corresponds.

Further, the number of the guide rollers is two; when the two guide rollers are fixed on the bracket part, the two guide rollers are obliquely arranged; and the distance between the two guide rollers is gradually reduced along the up-down direction to form a V-shaped groove structure, and the opening of the groove structure is upward.

further, the number of the guide rollers is three; when the three guide rollers are fixed on the bracket part, two guide rollers are arranged in a non-horizontal mode to form side walls of a groove-shaped structure, and the third guide roller is arranged between the bottom ends of the two guide rollers to form a bottom wall of the groove-shaped structure; the opening of the trough-like structure is upward.

furthermore, the bracket part comprises a plurality of bracket single bodies, each bracket single body is used for mounting at least one guide roller, and each bracket single body is fixedly connected with at least one tubular pile;

The plurality of bracket monomers are detachably and fixedly connected.

further, the bracket part comprises two bracket single bodies.

Further, the support single body comprises a cross beam and a stand column vertically arranged on the cross beam;

The top of stand is provided with first installation department, the crossbeam is kept away from the one end of stand bottom is equipped with the second installation department, be equipped with first draw-in groove on the first installation department, be equipped with the second draw-in groove on the second installation department, first draw-in groove with the second draw-in groove is used for connecting with two axle heads of deflector roll.

Further, the bracket part comprises a cross beam, two upright columns vertically arranged on the cross beam and a reinforcing member connected between the cross beam and the upright columns;

An upper clamping plate and a lower clamping plate are arranged at the upper end and the lower end of the upright post, two transverse clamping plates are arranged on the cross beam at intervals, a first clamping groove is formed in each transverse clamping plate, and the two first clamping grooves arranged at intervals can be matched with two shaft ends of the horizontally placed guide roller; the upper clamping plate is provided with a second clamping groove, the lower clamping plate is provided with a long round hole, and two shaft ends of the guide roller which is arranged in a non-horizontal mode can be installed in the second clamping groove and the long round hole.

it is another object of the present invention to provide a method of installing a cable pulling bracket, comprising;

a step of placing the pile-insertion guide frame at a predetermined position;

Respectively and sequentially hoisting two tubular piles by the land and water excavator, putting the tubular piles into the guide holes of the two pile inserting guide frames, and pressing or driving the tubular piles into a soil interface to reach a preset depth;

Measuring the distance between the two pile tops of the pipe pile, and adjusting the distance between the two pile tops of the pipe pile to a preset distance through an amphibious excavator;

when the cable tractive bracket has the cable tractive bracket of two deflector rolls on for the cradling part, still include:

connecting the two bracket monomers through bolts, and inserting the convex columns on the bracket monomers into the pipe holes pressed into the pipe piles with the designed depth;

Respectively installing two guide rollers between a first installation part and a second installation part which are arranged on the upright post and the cross beam on each bracket monomer;

When the cable tractive bracket has the cable tractive bracket of three deflector rolls for a cradling part, still include:

inserting the convex column on the bracket part into the pipe hole pressed into the pipe pile with the designed depth;

the guide roller that will not the level setting is installed between the last cardboard that both ends set up about the stand and lower cardboard, and the guide roller that the level set up is installed on the crossbeam between two horizontal cardboards that the interval set up to with the step that non-level guide roller and horizontal guide roller are fixed.

Further, in the step that the amphibious excavator respectively and sequentially lifts two tubular piles, the tubular piles are placed in the guide of the pile inserting guide frame and pressed into or driven into the soil interface to reach the preset depth, the tubular piles are pressed into the soil interface by using the excavator bucket of the amphibious excavator, and the tubular piles are fixed.

The invention provides a cable pulling bracket which comprises a supporting and fixing structure and a plurality of guide rollers. The supporting and fixing structure comprises a bracket part and a plurality of tubular piles; the support part arranged on the tubular pile can be fixed through a plurality of tubular piles of which the lower parts are fixed in the soil interface; and a plurality of guide rollers arranged on the bracket part are enclosed into a groove-shaped structure. In the process of pulling the cable, the cable can be placed on the groove-shaped structure of the cable pulling bracket, on one hand, the cable pulling bracket can support the cable, and on the other hand, the guide roller can rotate in the process of pulling the cable, so that the on-way resistance in the pulling process can be reduced. Compared with the prior art, the cable traction bracket provided by the invention is used for traction of a cable, does not depend on the buoyancy of seawater, and can avoid the influence of tide, so that the traction operation time can be prolonged.

meanwhile, the cable traction bracket is fixed into the soil interface through the lower part of the tubular pile, so that good fixation can be realized in environments such as coastal beaches and the like, and the stability of the cable traction bracket is ensured.

further, in an environment such as a coastal mudflat, it is inevitable that the movement of the equipment cannot be performed using the machine but only by manpower. The cable traction bracket is characterized in that a bracket part of the cable traction bracket supporting and fixing structure is detachably connected with the tubular pile, and a plurality of guide rollers are also detachably connected with the bracket part; therefore, the cable drawing bracket can be disassembled into a plurality of parts to be respectively carried, the weight of an object to be carried at each time is reduced, and manual carrying is facilitated.

The installation method of the cable traction bracket provided by the invention has the beneficial effects that the cable traction bracket can be quickly and detachably installed, good fixation can be realized in environments such as coastal beaches and the like, and the stability of the cable traction bracket is ensured.

in a preferred embodiment of the installation method, the pipe piles are fixed by pressing them into the soil interface using the excavator buckets of an amphibious excavator. In present mud flat construction operation, construction equipment hardly enters into the environment of mud flat and works, leads to staff's work load to improve greatly, and work efficiency is not high, because the amphibious excavator can accessible use in the mud flat environment, can reduce staff's work load through using the amphibious excavator, improves the efficiency of construction.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a cable pulling bracket according to an embodiment of the present invention;

FIG. 2 is a front view of a bracket portion of a cable pulling bracket according to one embodiment of the present invention;

FIG. 3 is a view of the bracket portion of the cable pulling bracket in the direction A according to the first embodiment of the present invention;

FIG. 4 is a view of the bracket portion of the cable pulling bracket according to the first embodiment of the present invention in the direction B;

fig. 5 is a schematic structural view of a cable pulling bracket support part according to a second embodiment of the present invention;

FIG. 6 is a front view of a bracket portion and guide roller combination according to a second embodiment of the present invention;

FIG. 7 is a side view of the carriage section and guide roller combination provided in FIG. 6;

FIG. 8 is a top view of the carriage section and guide roller combination provided in FIG. 6;

FIG. 9 is an enlarged view of a portion of FIG. 8;

FIG. 10 is a schematic structural diagram of a transverse clamping plate in the cable pulling bracket provided in the second embodiment of the present invention;

fig. 11 is a schematic structural view of an upper clamping plate in the cable pulling bracket according to the second embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a lower card board in the cable pulling bracket according to the second embodiment of the present invention;

fig. 13 is a schematic structural view illustrating a guide roller of a cable pulling bracket according to a second embodiment of the present invention cooperating with a first slot or a second slot;

Fig. 14 is a schematic structural view of the cable pulling bracket according to the second embodiment of the present invention, in which the guide roller is engaged with the oblong hole.

In the figure: 1-pipe pile; 2-a bracket part; 3-a guide roller; 21-convex column; 22-a cross beam; 23-a column; 24-a first mounting portion; 25-a second mounting portion; 26-a transverse clamping plate; 27-an upper clamping plate; 28-lower snap gauge; 29-a reinforcing member; 241-a first card slot; 251-a second card slot; 281-long round hole.

Detailed Description